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19-letter words containing r, u, t, l

  • lightning conductor — A lightning conductor is a long thin piece of metal on top of a building that attracts lightning and allows it to reach the ground safely.
  • limit of resolution — the capacity of an optical system to resolve point objects as separate images.
  • liouville's theorem — the theorem that every function of a complex variable, bounded and differentiable for all finite values of the variable, is a constant function.
  • liquorice all-sorts — a brand of assorted sweets containing liquorice as well as coloured candy made of sugar, gelatine, and coconut
  • logical unit number — (storage)   (LUN) A 3-bit identifier used on a SCSI bus to distinguish between up to eight devices (logical units) with the same SCSI ID.
  • longitudinal parity — (storage, communications)   An extra byte (or word) appended to a block of data in order to reveal corruption of the data. Bit n of this byte indicates whether there was an even or odd number of "1" bits in bit position n of the bytes in the block. The parity byte is computed by XORing the data bytes in the block. Longitudinal parity allows single bit errors to be detected.
  • lose no opportunity — If you say that someone loses no opportunity to do or say a particular thing, you are emphasizing that they do it or say it whenever it is possible.
  • lose your virginity — When you lose your virginity, you have sex for the first time.
  • lumholtz's kangaroo — boongary.
  • lupus erythematosus — any of several autoimmune diseases, especially systemic lupus erythematosus, characterized by red, scaly skin patches.
  • luteinizing hormone — LH.
  • malice aforethought — a predetermination to commit an unlawful act without just cause or provocation (applied chiefly to cases of first-degree murder).
  • manual transmission — an automotive transmission in which the driver shifts gears manually.
  • manufacturing plant — factory
  • mary mcleod bethune — Mary McLeod [muh-kloud] /məˈklaʊd/ (Show IPA), 1875–1955, U.S. educator and civil-rights leader.
  • mercurial barometer — mercury barometer.
  • metropolitan county — (in England) any of the six conurbations established as administrative units in the new local government system in 1974; the metropolitan county councils were abolished in 1986
  • midnight regulation — a rule or directive approved by the federal government near the end of a president’s term of office
  • modulus of rigidity — shear modulus.
  • molecular astronomy — the branch of astronomy dealing with the study of molecules in space.
  • molecular biologist — a specialist in the study of biological phenomena at the molecular level
  • molybdenum trioxide — a white, crystalline, sparingly water-soluble powder, MoO 3 , used chiefly in the manufacture of molybdenum compounds.
  • mount desert island — an island off the coast of E central Maine: summer resort; forms part of Acadia National Park. 14 miles (23 km) long; 8 miles (13 km) wide.
  • multinomial theorem — an expression of a power of a sum in terms of powers of the addends, a generalization of the binomial theorem.
  • multiple-entry visa — a visa that permits the holder to enter a country several times
  • multiplexor channel — (MPX) mainframe terminology for a slow peripheral device connection, e.g. for a printer, operator console, or card reader.
  • mushroom ventilator — a ventilator having at the top of a vertical shaft a broad rounded cap that can be screwed down to close it.
  • mutual masturbation — the act of two or more people masturbating each other
  • national curriculum — The National Curriculum is the course of study that most school pupils in England and Wales are meant to follow between the ages of 5 and 16.
  • natural catastrophe — A natural catastrophe is an unexpected event, caused by nature, such as an earthquake or flood, in which there is a lot of suffering, damage, or death.
  • natural killer cell — a small killer cell that destroys virus-infected cells or tumor cells without activation by an immune system cell or antibody.
  • near letter quality — a quality of print that is not quite letter quality, but is better than draft quality
  • negation by failure — An extralogical feature of Prolog and other logic programming languages in which failure of unification is treated as establishing the negation of a relation. For example, if Ronald Reagan is not in our database and we asked if he was an American, Prolog would answer "no".
  • neuropathologically — In a neuropathologic way.
  • neurotransmissional — Relating to neurotransmission.
  • new year resolution — a promise to yourself or decision to do something, especially to improve one's behaviour or lifestyle in some way, during the year ahead
  • nine plus two array — the arrangement of microtubules in a flagellum or cilium, consisting of a ring of nine evenly spaced couplets surrounding two central singlets. Symbol: 9 + 2.
  • nonforfeiture value — any benefit, as cash or other form of insurance, available to a life-insurance policyholder who discontinues premium payments on the policy.
  • nonmaterial culture — the aggregate of values, mores, norms, etc., of a society; the ideational structure of a culture that provides the values and meanings by which it functions.
  • normal distribution — a theoretical frequency distribution represented by a normal curve.
  • not for much longer — if something will not happen for much longer, it will soon stop happening
  • nuclear disarmament — the gradual reduction and eventual elimination of all nuclear weapons in the world
  • nuclear power plant — factory that generates atomic energy
  • occupational hazard — a danger or hazard to workers that is inherent in a particular occupation: Silicosis is an occupational hazard of miners.
  • oil-catalyst slurry — Oil-catalyst slurry is a heavy aromatic by-product of a refinery's fluid catalytic cracking unit, that forms a small part of global fuel oil supply.
  • ole custom controls — (programming)   (OCX) An Object Linking and Embedding (OLE) custom control allowing infinite extension of the Microsoft Access control set. OCX is similar in purpose to VBX used in Visual Basic. Available OCX's include "Scroll Bar Control", "Calendar Control", and "Data Outline Control".
  • olive-backed thrush — Swainson's thrush.
  • optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
  • oriental fruit moth — a moth, Grapholitha molesta, introduced into the U.S. from Asia, the larvae of which infest and feed on the twigs and fruits of peach, plum, and related trees.
  • oscillating circuit — a circuit producing electrical oscillations.
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